Effect of two different base cuts and indole-3-butyric acid (IBA) doses on rooting of stem cuttings of wild Silene compacta Fischer

Abstract

Silene compacta Fisch. ex Hornem., which grows naturally, is a plant species with high ornamental plant potential in the Silene L. genus of the Caryophyllaceae family. Vegetative propagation is one of the important ways to preserve naturally growing and cultivated plant species. In this study, the effect of two different cutting areas of the cutting base (above the node-below the node) and five different indole-3-butyric acid (IBA) doses (control, 500, 1000, 2000 and 4000 ppm) on the rooting of stem cuttings taken from individuals of the natural S. compacta species were investigated. IBA was applied to the cuttings’ bases in a commercial rooting powder. Perlite+peat mixture at a ratio of 1:1 (v/v) was used in the rooting medium. Survival rate, rooting percentage, blooming rate, root number, root length, seedling height, seedling stem diameter, side shoot number, shoot length and shoot stem diameter were evaluated. The evaluation was made one month after the start of the experiment. As a result, the highest survival rate in cuttings was obtained from above-node control group (100%) and under-node 2000 ppm IBA (95%) application, and the highest rooting percentage was obtained from under-node 2000 ppm IBA (68%) and above-node control group (65%), respectively. Based on the results, it can be concluded that different cuttings of the cutting base and IBA concentrations have different effects on the rooting success of the S. compacta species with stem cuttings.